The campaign itself is alright, but besides some specific ideas, it's nothing special. The same thing can be said about multiplayer. Titanfall 2 has some cool ideas, but often fails to execute them properly. The losing team getting a fun goal at the end of the match is pretty fun, but it doesn't really add any depth to the game itself. If moving around the map isn't your cup of tea, then this game isn't for you. Titans themselves aren't nothing special either, the one who kites around better wins. If you appreciate your opponents being an actual threat, then you can pass on this. And I think that's what most people did. A lot of blame is put on EA that they released this game along with Battlefield 1 with zero marketing, but Titanfall stayed in the relevancy for a long time, getting enough time to earn an active player base, but I think a lot of people actually tried the game and dropped it, because of how boring the core gameplay is.